rioyoung Posted June 20, 2017 Report Share Posted June 20, 2017 I have a hand full of MCP23017 (16 bit multiplexers/ I/O Expander) but I can only get 8 IC on the bus due to the limit of address but I need 200 pins (about 13 ICs) for a 8*8*8 RGB cube and was thinking about and wondering what issues I might have if. A. changing the addresses of the IC actively OR B. use a transistor to disconnect the clock of on set of ic's and control the other set I don't like the idea of a shift register because of size and programming headache MCP23017 data sheet Quote Link to comment Share on other sites More sharing options...
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